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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 4.0mm), mostly falling on Thu night. Freeze-thaw conditions (max 9°C on Thu afternoon, min -3°C on Tue night). Winds decreasing (strong winds from the WNW on Tue night, light winds from the W by Fri afternoon).
Osa Weather (Days 4-6): Moderate rain (total 14.0mm), heaviest on Mon afternoon. Very mild (max 11°C on Sun afternoon, min 3°C on Fri night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -5 |  | ||||
| Bottom Lift: | -2 | |
Latest snow reports near Osa:
Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  | | |  |  |  | | |  | |  | | | | | |
some clouds | clear | clear | some clouds | cloudy | light rain | rain shwrs | clear | clear | clear | clear | some clouds | clear | clear | clear | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 1 | 3 | — | — | — | — | — | — | — | — | — | |
max °C | -1 | 2 | 2 | 2 | 8 | 9 | 7 | 8 | 8 | 4 | 9 | 9 | 4 | 10 | 11 | 6 |
min °C | -3 | 0 | -1 | 0 | 5 | 7 | 3 | 5 | 4 | 3 | 6 | 4 | 3 | 6 | 6 | 5 |
-11 | -6 | -6 | -5 | 0 | 2 | -2 | 1 | 2 | 0 | 4 | 4 | 1 | 4 | 5 | 2 | |
77 | 60 | 64 | 85 | 78 | 83 | 92 | 51 | 36 | 28 | 36 | 43 | 61 | 56 | 44 | 60 | |
350 | 650 | 900 | 1000 | 1650 | 1850 | 1650 | 1850 | 1900 | 2100 | 2000 | 2100 | 2150 | 2150 | 2200 | 2200 | |
 | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — |
Light rain (total 4.0mm), mostly falling on Thu night. Freeze-thaw conditions (max 9°C on Thu afternoon, min -3°C on Tue night). Winds decreasing (strong winds from the WNW on Tue night, light winds from the W by Fri afternoon).
Moderate rain (total 14.0mm), heaviest on Mon afternoon. Very mild (max 11°C on Sun afternoon, min 3°C on Fri night). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 11 Jan 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.4 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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